Nor should any reasonably well-found and well-managed boat.

My thoughts on the Bayesian sinking:
1. Silly design, more show-off than common sense. A single mast of 246 feet is plain dangerous; if that much sail is needed then rig the boat as a schooner or ketch.
2. Decorative lights were strung about the boat and left up regularly. Stuff left dangling aloft adds to windage which adds to heel.
3. The swing keel was left in an up position, thus reducing the righting moment of the boat. (More tippy)
4. The boat was anchored in an open roadstead in 160 of water, which means swinging on an enormous amount of chain. A boat at anchor can swing wildly, sometimes broadside to the wind.
5. In spite of storm forecasts, doors, windows, and hatches were left open.

For a happier fate:

1. Anchor at a reasonable depth in a sheltered place.
2. Pay close attention to weather forecasts, and plan ahead.
3. At or before the first hint of bad weather, stow everything stowable, put the keel down, batten the hatches, gather everyone aboard in the safest place (with PFDs), review the emergency plan.
4. Before the storm hits, get the anchor up and the engine on, and prepare to hold the boat pointing directly into the wind.
5. Furthermore, before all this, buy a sensible boat.